Rewrite bar in simple time without changing rhythm?

How do i do that guys? Dont exactly understand it lol

You just have to remember what makes up one beat.

Example: you've got a piece in 6/8, which is compound time. The simple time equivalent is 2/4. In 6/8, one beat is made up of three quavers, or one dotted crotchet. In 2/4, one beat is made up of two quavers, or one crotchet.

A dotted crotchet in 6/8 is the equivalent of a crotchet 2/4 because they're both one-beat notes.

Three quavers in 6/8 take up one beat. For 2/4 you have to make those three quavers into the time of two (because that's now what one beat is). As you know, putting a figure 3 above those quavers makes them into a triplet, which is three in the time of two. Bingo.

If there are two quavers with a figure 2 above them in 6/8, that's a duplet, or two quavers in the time of three, making up one beat. But in 2/4 two quavers already make up one beat, so you just need to write them straight without the figure 2.

Continue for all other possibilites. If you make sure that everything that makes up one beat in one time signature also makes up one beat in another time signature, you can not possibly go wrong with this.

Thanks for that mate,

Another question, how do u work out harmonic intervals... I know normal intervals but these seem diff.. Theres a Cb and D.. Middle c to the bass clef...

Cheers, prolly somat simple where im not thinking, just carnt get me head round this one

A harmonic interval is exactly the same as a melodic interval - the only difference is that one note sits on top of the other (as in harmony) not one after another (as in a melody).

Personally, I don't see the need to call them by these different names and confuse people!

If you mean naming an interval given its note names, there was a thread called "Grade 5 intervals - help" that discussed this at length last month.